Attachment mechanism



Aug. 7, 1 928.

L. E. ROBY I ATTACHMENT MECHANISM Original Filed March 19, 1926 tent-2ELUTHER E. RUBY, OF PEORIA, ILLINOIS.

ATTACHMENT MECHANISM.

Application filed March 19, 1926, Serial No. 95,968. Renewed March 3,1927..

This invention relates to attachment mechanism between plows and drills.7

One of the objects of the invention is in the provisionof attachmentmeans between plows and drills which insures the travel of the drillbehind the plow in'the proper drilling position at all times, andfurther permits the making of a sharp turn when the length of thefieldhas been traversed.

Another object is in the provision of specialattachment means between aplow and a small drill, adapted to be, drawn behind the plow in a mannerto insure the proper drilling and seeding operation, said attachmentmechanism being of a semi rigid construction and permitting a sh re turnto be made by the drill. A-further object is in the provision ofattachment. means between a plow and drill, said attachment mechanismincluding a semi-rigid positioning of the drill tongue with the plowmember and connections with the drill to permit sharp turning thereof.

Other objects of the invention will appear in the followingspecification, taken in connection with the annexed drawings, in

which Fig. 1 is a plan view of a plow and following drill member, withthe attachment mechanism connecting same;

Fig. 2 is a side elevation shown in Fig. 1.

Referring to the drawings, there has been shown a special attachmentmeans between aplow and drill, said connecting means insuring propertravel of the drill, as well as permitting sharp turning thereof whennecessary.

The necessity for the attachment mechanism which forms the basis for thepresent application, has apparently arisen only in the past few years,during which time there has come into use, especially in theNorthwestern portion of the United States, a manner of plowing anddrilling, utilizing a conventional plow member followed by a smalldrill. Plowing and drilling are ordinarily separate operations, but forthe purposes of economy, saving of time, and the employment of less manpower, it has been found profitable to combine the use of a'plow memberwith a small drill, properly spaced therebehind in such manner that thedrilling operation succeeds immediately the plowing operation.

Connecting means of ordinary design beof the parts tween the plow anddrill will not permit the most efiicient functioning and travel of thedrill member, and for this reason, applicant has devised the followingmechanism. '7

1O designates a well known three-bottom plow structure, the same beingof conven tional design. 11 generally refers to a small press drill,conventional in design, except that the drill is considerably smallerthan the drill used whena separate drilling operat on is employed. Thedrill 11 is of. such s ze as to properly drill; and seed the furrowsopened by the three-bottom plow, generally referred to as 10. I i

Referring to the attachmenumeans be the wheel 15, and hence theturningmovement of the drill.

In view of the fact that the drill must fol low in a certain positionbehind. the plow,

there must necessarily be a rigid, or substantially rigid, maintenanceof the position of the tongue 12, with respect to the plow. This rigidconnection is accomplished in the following manner. 1

A clamp 18 is bolted, as at 19 and 20, to the plow beam. This clamp hasan outwardly extending bracket 21 having an aperture therein, throughwhich is projected a downwardly extending lug 22, suitably bolted bytheseries of bolts 23, to the forward end of thetongue 12. Thisconnection is obviously rather loose. clamp 24 is fastened by means ofthe bolt 25, to a brace rod 26 on the plow. The clamp 24 has, anextended bracketv 27, through which is projected the end of a rod member28, a conventional cotter pin' 29 completing the connection in exactlythe same manner as thecotter pin 30 completes the connection of thetongue with the before described clamp 18.

Surrounding the rod 28 is a sleeve 31, which abuts at one end theupstanding portion '27, and at the opposite end a bracket 82, securelyclamped, asat 33, to the tongue 12. The rod member 28 projects throughan aperture in the bracket 32, permitting the A second 1 above describedabutment of the sleeve with said bracket. 1

Means for providing a semi-rigid connection of'the tongue with respectto the plow is accomplished by the use of the COll spring 34 surroundingthe projectingend' of the rod 28, there being provided a washer 35attached to the projecting end of the rod 28,

securing one end of thercoil spring 34, the other end abutting bracket32. a

The operation of the attachment means herein shown between the plow anddrillis thought obvious, in view of the above description, except forthe fact that although the drill member, is maintained in asubstantially rigid position behind the plow, to

insure proper operation,nevertheless, there s provided the springtensioned connection of the tongue'with the plow to take care of themovement of the drill' over extremely uneven 'grou'nd surface and over.rocks and the like. f

'Due-tothe use} of this attachment means, insurance of'propertrave'l ofthe drill behind the plow is efiected, and the special connection of thetongue with the drill per- 'mitsf turning of the drill member in directrelation to the turning of the plow.

' What I claim is: p 1. The combination with a plow and a drill'meinber,'of attachment means there-' betweenadapted to insure travel of thedrill in alignment with the plow, as well as permitting short turningradius, including a tongue attached to the plow and having a pivotalconnectiomat a point near its opposite end, 'with'the drill, framingmembers disposed rearwardly of the pivotal connection with the drill,said framing members controlling the movement of the tongue with respectto the drill member, stop members on the framing members to limittheturning movement of the drill with relation to the tongue, andmechanism connecting the plow with the tongue to hold the latter-in, av

semi-rigid manner with respect to the plow. 2. In apparatus of thecharacter described,

a gang plow main frame, a main draw bar centered forwardly thereof, aset of plows -50 meanpoint of draftlocated at one side of implementpivotally connected to said second draw bar by a tongue, andvsemi-resilient means between said mainframe and said' tongue to normallyhold the tongue substan- "draw bar carried by the frame atthe oppo- I Itially parallel with the mainframe, thus 7 causing vthe main draw bar'pulljto nor mailypass through said longitudinal axis.

The combination with a plow and a drill member, of attachment meanstherebetween adapted to insure travel of the drill in alignment with thepl0w,'aswell as per-' mitting" short turning radius, including a tongueattached to the plow and tolthe drill, and mechanism connect ng theplow'with the tongue to hold the latter in a semi-resilient manner withrespectto the plow. 7

In testimony whereof, I, have hereunto afiixed my signature.

V LUTHE E. ROBY.

